Overtopping of Coastal Structures by Tsunami Waves
Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). Howeve...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-11-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/7/4/121 |
| _version_ | 1819105441230094336 |
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| author | Miguel Esteban Toni Glasbergen Tomoyuki Takabatake Bas Hofland Shinsaku Nishizaki Yuta Nishida Jacob Stolle Ioan Nistor Jeremy Bricker Hiroshi Takagi Tomoya Shibayama |
| author_facet | Miguel Esteban Toni Glasbergen Tomoyuki Takabatake Bas Hofland Shinsaku Nishizaki Yuta Nishida Jacob Stolle Ioan Nistor Jeremy Bricker Hiroshi Takagi Tomoya Shibayama |
| author_sort | Miguel Esteban |
| collection | DOAJ |
| description | Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known. |
| first_indexed | 2024-12-22T02:22:18Z |
| format | Article |
| id | doaj.art-ae9ba971c55442b6b178a2c7624324a6 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-12-22T02:22:18Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-ae9ba971c55442b6b178a2c7624324a62022-12-21T18:42:06ZengMDPI AGGeosciences2076-32632017-11-017412110.3390/geosciences7040121geosciences7040121Overtopping of Coastal Structures by Tsunami WavesMiguel Esteban0Toni Glasbergen1Tomoyuki Takabatake2Bas Hofland3Shinsaku Nishizaki4Yuta Nishida5Jacob Stolle6Ioan Nistor7Jeremy Bricker8Hiroshi Takagi9Tomoya Shibayama10Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8563, JapanDepartment of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, P.O. Box 5048, Delft 2600GA, The NetherlandsDepartment of Civil and Environmental Engineering, Waseda University, 3-4-1 Ookubo, Tokyo 169-8555, JapanDepartment of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, P.O. Box 5048, Delft 2600GA, The NetherlandsDepartment of Civil and Environmental Engineering, Waseda University, 3-4-1 Ookubo, Tokyo 169-8555, JapanDepartment of Civil and Environmental Engineering, Waseda University, 3-4-1 Ookubo, Tokyo 169-8555, JapanDepartment of Civil Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON CBY A306, CanadaDepartment of Civil Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON CBY A306, CanadaDepartment of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, P.O. Box 5048, Delft 2600GA, The NetherlandsTokyo Institute of Technology, Tokyo 152-8550, JapanDepartment of Civil and Environmental Engineering, Waseda University, 3-4-1 Ookubo, Tokyo 169-8555, JapanFollowing the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward inundation heights of tsunami bores as they hit coastal structures has received little attention in the past. To ascertain this phenomenon, the authors conducted physical experiments using a dam-break mechanism, which could generate bores that overtopped different types of structures. The results indicate that it is necessary to move away from only considering the tsunami inundation height at the beach, and also consider the bore velocity as it approaches the onshore area. The authors also prepared a simple, conservative method of estimating the inundation height after a structure of a given height, provided that the incident bore velocity and height are known.https://www.mdpi.com/2076-3263/7/4/121coastal dykedam breaktsunamiovertoppingevacuation |
| spellingShingle | Miguel Esteban Toni Glasbergen Tomoyuki Takabatake Bas Hofland Shinsaku Nishizaki Yuta Nishida Jacob Stolle Ioan Nistor Jeremy Bricker Hiroshi Takagi Tomoya Shibayama Overtopping of Coastal Structures by Tsunami Waves Geosciences coastal dyke dam break tsunami overtopping evacuation |
| title | Overtopping of Coastal Structures by Tsunami Waves |
| title_full | Overtopping of Coastal Structures by Tsunami Waves |
| title_fullStr | Overtopping of Coastal Structures by Tsunami Waves |
| title_full_unstemmed | Overtopping of Coastal Structures by Tsunami Waves |
| title_short | Overtopping of Coastal Structures by Tsunami Waves |
| title_sort | overtopping of coastal structures by tsunami waves |
| topic | coastal dyke dam break tsunami overtopping evacuation |
| url | https://www.mdpi.com/2076-3263/7/4/121 |
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